76 GHz stations

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Information on this page still needs to be improved

This is information about the 76 GHz EME stations with performance data.

In measuring Moon noise the best time to measure would be close to perigee, high elevation and a few days after full moon.
When I tried to find the best timing for moon noise measurement I found the VK3UM planner tool which predicts moon temperature.

It is clear that measurments on 76 GHz moon noise will vary quite a lot.
My suggestion would be to add the moontemp from the VK3UM planner tool to the measured performance.

Stations performance, I still need data on the red blocks, please send me your info. The list is arranged alphabetical by Callsign

List last updated: 17-07-2023; updated data from  CT1BYM, DL7YC, OE2IGL






Elevation /temp


elev/temp/humid CS/G date of measurement using WG switch atm temp Moon temp Remarks
CT1BYM 1.2 mtr offset 6.5 dB   5.1 dB 71 deg/31C 0.4 dB 45 deg/31/30% 0.5dB 16-7-2023 no -28 227 K Kathrein CAS120
DL7YC 2.4 mtr 0.4 pf 2.5 dB   11 dB xxdeg 1.7 dB  xx deg/-2/25%   winter 2022 no      
OE2IGL 0.63
offset 6.2 dB   5.78 dB 53 deg/22/22% -      - 19-4-2019 yes     Gibertini dish
RW3BP 2.4 mtr offset 0.85 dB   14.6 dB 35deg/5/36% 3.9 dB 45 deg/-12/90% 4.25 dB winter 2017        
W5LUA 2.4 mtr offset 4.5 dB   6.5 dB   0.4 dB              

The setup from CT1BYM in the 1.2 mtr offset dish

Setup from DL7YC with DB6NT transverter, a low noise pre amplifier and a feedhorn for his dish

Liquid Nitrogen Cooling pre-amp at RW3BP


Table atm temp:
I have been working with a infrared thermometer to measure the temp of the atmosphere. I think this will give some extra information on atmospheric losses during the measurements/ The proposal is to measure during the 47 GHz measurements also the atmospheric temperature at the same angle and direction of the moon or the sun. I hope this will bring us closer to understanding atmospheric losses on 47 GHz for EME. Values can be seen between -20 or -30 during unclouded weather and low humidity in atmosphere but during clouded weather or unclouded weather with high humidity the measured atmospheric temperature will be much higher even up to the level of ground temperature. We can expect that losses on 47 GHz will be much higher than when we measure a atmospheric temp at -20 degrees Celsius.
Mind that some infrared thermometers will not measure these low values, a simple test in your freezer will show you if the infrared thermometer can be used.

Table moon temp:
The moon temperature is related to the sunshine on the moon and therefore directly related to the phase of the moon.
In VK3UM EME planner we can find the moon temp during the measurement, the proposal is to find this value and add this to the measured data. Up to now I have seen strong dependency on measured moon noise levels and moon temp, as might be expected.